During the development of multilayer oil and gas condensate fields, the production of condensate is influenced by the associated oil. Analysis of field data showed that the cause of oil flows is the outstripping decrease in reservoir pressure in the gas condensate section in comparison with oil zones. Thus, incoming heavy oil fractions into a gas condensate reservoir have a negative impact on reservoir losses of hydrocarbons, including the final condensate recovery factor. Many years of experience in the development of such fields showed that the bulk of the presence of associated oil in well production is explained by the following reasons: the relationship between the reservoirs through lithological windows, the residual oil saturation of the reservoirs, and the presence of lenticular layers. Determination of the quantitative content of oil in the reservoir mixture was determined by infrared spectrometry using a Perkin-Elmer Fourier transform spectrometer, which makes it possible to assess changes in the component composition of gas condensate systems. In the course of the research, selected samples of the gas and liquid phases were analyzed directly from the production facilities of the development. The analysis of IR spectrometry showed that in most of the samples of gas condensates, the effect of displacement is recorded, which is characteristic of fluids with the manifestation of oil impurities. The purpose of these studies is to study the influence of the produced oil on the dynamics of hydrocarbon production and the final condensate recovery factor.

The tendency of the growth of the share of natural gas in the structure of the fuel and energy balance in Russia has led to active involvement in the industrial development of gas and gas condensate fields located in extreme natural and climatic conditions. Development of Yamalo-Nenets Autonomous Okrug fields, in which more than 65% of the explored reserves of Russia are concentrated, is a fundamentally new stage in the theory and practice of design, construction, and operation of such fields. Justification of condensate recovery during the development of U1 and U2 formations is relevant because the structure of the Termokarstovoye field contains deposits of both massive and reservoir types. It is advisable to develop massive type gas condensate formations simultaneously either with vertical wells or double-barreled wells with horizontal ending. Development of productive layers U1 and U2 are being depleted by wells with horizontal opening of the formation. Moreover, three wells with two horizontal boreholes exploit the U1 formation and two vertical wells are located in the dome zone of the object I. The placement of double-barreled well number 111 is quite justified, since it is located at the edge of the structure of the U1 formation, close to the internal gas-bearing contour. The conducted studies significantly allow increasing condensate recovery and the productivity of gas condensate wells, due to the creation of favorable conditions for the removal of condensate to the surface.